Mold for cement and concrete posts.



A. Z. PIERCE.

MOLD FOR CEMENT AND CONCRETE POSTS.

APPLICATION FILED FEB. 18, 1914.

1,146,949. Patented July 20, 1915.

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MOLD FOR CEMENT AND CONCRETE POSTS.

APPLICATION FILED FEB. 18, [914.

Patented July 20, 1915.

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ALVIN Z. PIERCE, 0F WCODHULL, NEW YORK.

MOLD FOR CEMENT AND CONCRETE POSTS.

Specification of Letters Patent.

Patented m 20, 1915.

Application filedFebruary 18, 1914. Serial No. 819,509.

To all whom it may concern:

Be it known that I, ALVIN Z. PIERCE, a citizen of the United States,- residing at Woodhull, in the county of Steuben and State of New York, have invented certain new and useful Improvements in Molds for Cement and Concrete Posts, of which the following is a specification, reference being had to the accompanying drawings. I

This invention relates to new and useful improvements in fence post molds and the primary object of the invention is to provide a device of this character which may be quickly and readily set up for use and taken down, when desired.

A further object of the invention resides in providing a mold of such construction as to form a post of minimum weight, maximum strength and durability and artistic in appearance and a still further object resides in providing a mold which will form a post that may be readily constructed and manipulated, one that will economically distribute the.-material used with regard to working, strength, anchorage surface and ease of attaching the wires or super-structure. I

Still another object of the invention resides in providinga mold which is formed in sections removably secured together,

whereby the same may be used for a dual purpose, 6. 6., toconstruct a or a complete post.

A still further object of the lnvention repost base proper and durable inconstruction, inexpensive to manufacture and one which will be very efficient' and useful in operation. i

With these andother objects in view, the

invention consists in'the novel features of construction, combination and arrangement of parts as will be hereinafter referredto and more particularly pointed out in the specification and'claim.

In the accompanying drawings forming a part of this application, Figure 1 is a view in perspective of a mold constructed in ac cordance with my invention, the lower plate being removed. Fig. 2 is a section therethrough as seen on line 22, Fig. 1 with a groove forming strip, included inthe present embodiment of my invention, shown in applied position. Fig. 3 is a similar view as seen on line 3+3 Fig. 1 with a groove forming strip, included inrthe present embodiment ofmy invention, shownin applied position. Fig. 4 is a side elevation of the mold. Fig. 5 is a vertical longitudinal section through the mold showing the bridge wall in place therein. Fig. 6 is a perspective view of one of the engaging members for securing the sections of the mold together. Fig. 7 is a bottom plan view of the mold. Fig. 8 is a perspective view of the strip used in connection with the mold for forming the longitudinal channel in the post. Fig. 9 is a perspective view of the cement post formed from the mold. Fig. 10 is a transverse sectiontherethrough; and Fig. 11 is a detail perspective view of a cuneiform bridge member.

In describing my invention, I shall refer to the drawing in which similar reference characters designate corresponding parts throughout the several views and in which 1 indicates a shell or the like composed primarily of the three faces 2, 3 and 4, the faces 2 and 4: being formed or secured to the face 3 and disposed outwardly at obtuse angles with respect thereto. This shell may be said to be somewhat V-shaped in cross section and the intermediate or rear face 3 is split centrally removed from the casting. when desired.

This shell is also'cut horizontally, as shown at 7 whereby to provide an upper section A and a lower sectionB. These sections are adapted to be removably held together by means'of peculiarly designed plates 8 which are secured to the faces 2 and 4: of the lower section B and project above the upper edges of the'latter. The projecting portions of these plates 8 are provided with the upwardly directed open slots 9, while the faces of the upper section A are provided with headed studs 10, the shanks of which are adapted to be received in the slots 9. It is obvious that when the upper section is applied to the lower section and the studs introduced in the slots of the plates 8, the members A and B may be removably held together, it being understood that the plates 8 will be secured in position by frictional engagement with the headed studs and the faces of the upper section A.

The outer side edges of the faces 2 and 4 of the shell 1 are offset for the greater porfaces 2 and 4c, for the length of the offset portions thereof, are provided with the" inwardly extending projections 12. These projections may be strips which are secured to the inner facesof the faces 2 and 1, or may be strip-like projections actually formed thereon, as desired and the inner opposed faces of these projections 12 are beveled so as to provide additional inner faces on the shell which are disposed angularly with respect to the inner walls of the faces 2 and a proper. In this manner a particularly designed interior is provided for the shell, whereby a particularly designed prismatic post may be formed thereby.

The inner marginal portions of the opposed walls of the faces 2 and 3 are grooved longitudinally and loosely mounted therein is a corrugated strip 13 so that the post formed from this mold will have its one face corrugated for the greater portion of its length. The corrugations so formed in a post made from this mold will admit of Wires or a super-structure being readily secured thereto, as appears obvious.

Y By offsetting the edges of the faces 2 and 1, it will be seen thatthe lower portion of the' moldhas a space therein of greater area than the upper portion, so that a larger lower enlargement may be formed on the post, said portion being particularly desirable as an anchoring means. It will be noted also that the portion of the shell opposed to the-face 3 thereof, is open for the entire length of said shell, the projections 12 on the device reducing this open space for the V greater'portion of the length of the shell.

Formed on or otherwise secured to the inner faces of the walls 2'and 4: of the lower 7 member B, are the longitudinally extending stripsor projections 14. These strips are I tapered narrow toward their upper ends and the freeends thereof are beveled. The lower ends of these strips terminate at points slightly in advance of the lower ends of the walls 2 and 1.. The provision of these strips in this portion of theshell obviously provides grooves or the like with two of the walls of the post formed from this mold and as the side edgesof these strips are beveled,

and the strips themselves shortened, the side walls of the grooves so formed will also be beveled and a base retaining flange formed thereon. In this manner, earth will find a securing bearing surface in the grooves and readily and securely retain the anchoring I portion'of the post in position in the ground.

These grooves also lessen the weight of the postso formed and make it cheaper to construct.

Mounted on the upper and lower ends of signed similar to'the designof the cross sec tions. In order to doubly secure the lower end plates in position, a pivoted latch member 19 is provided on the shell for engagement therewith. This securely retains this lower end plate in position and as this particular end plate isthe more important, it is essential that such a securing means be provided. 1

As above stated, the shell. is cut'transversely, intermediate of its ends to provide an upper and lower section, A and B. 'By constructing the shell in sections, as set forth, a'separable post base andpost may be formed, inasmuch as the lower portion B of the shell is designed to form .a post base'in itself or two post bases may be formed, since each portion of the mold is adapted for a post base mold. This shell, therefore, is so constructed as to perform a triple function, 6., to provide a post complete or a post base and post therefor, or two post bases. In order to provide both'a post base and post, or two post bases, through the medium of this mold, a partition wall 20 is provided which is insertible between the-sections A and B. This bridge wall takes the design of the mold at such point, the same being i cut away or recessed, at its one edge to receive the strip 21 in a manner to be hereinafter and more particularly setforth. It is obvious from this construction, therefore, that either two post bases, a post base and separable post or a complete post may be formed through the mediumof this mold.

As stated above, the portion of the shell opposed to the intermediate or rear face 3 thereof, is open for the full portion of its length and I have provided astrip 21 to be applied to the material within the mold by the introduction of said strip through this open space referred 'tog'with its lower end length of the shell and the resulting post,

has a groove for nearly its full length, in one face thereof, except the portion at thefbottom; This groove, of course, has its: side walls beveled, in accordance with thebevel'ed faces of the strip: By providing a groove in the post in this mannenthe same has its weight lessened and is cheaper to manufacture. Furthermore, the groove is of just sufficient depth to accomplish the above mentioned advantages and, at'the same time, permit the post to beef such size as to attain the maximum stability, strength.

In the application of this shell to use, after the material has been properly applied to the shell, assuming that the latter is set up and the strip 21 forced into position, it is only necessary to turn the shell over and separate the sections A and B from one another by drawing longitudinally thereupon in opposite directions. In View of the particular construction of this mold, it will not be necessary to wait until the material has entirely hardened in the shell after separating the sections A and B, so as to entirely disengage the locking means therebetween, the end plates are removed and said sections separated by drawing laterally upon the sections of each, formed by the longitudinal slitting thereof. The sections of each member A and B will readily separate from one another and from the casting, in view of the hinge connection therebetween and thus durability and the complete shell may be readily and quickly removed from the post or post bases.

From the foregoing it will be seen that I have provided a device whichis simple and durable in construction, inexpensive to manufacture and one which will be very efficient and useful in operation.

In Fig. 11, I have illustrated what will be hereinafter known as a cuneiform bridge, in the shape of a small independent wedge, which is adapted to be set upright against the material forming the partition wall 20 in the lower section,

when said section is to be used alone for forming post bases. This cuneiform which is indicated by the numeral 20, is provided Copies of this patent may be obtained for five cents each, by addressing the upon one side thereof with a plurality of transverse notches 21, forming a part of the inner surface of the shell and provides suitable notches in the post base adapted to receive the binding wires in attaching wooden uprights or posts to the base.

l/Vhile I have particularly described the elements best adapted to perform the functions set forth, it is obvious that various changes in form, proportion and in the minor details of construction may be resorted to without departing from the spirit or sacrificing any of the principles of the invention.

Having thus described this invention, what is claimed is A mold of the character described comprising a shell having one face and end open and substantially ll-shape in cross section, each of said side walls of the shell being capable of relative movement, a headed member carried by the free end of each of said side members of the shell adjacent the free longitudinal edge thereof, a plate for closing the open end of the mold provided with parallel open slots in one marginal por tion adapted to accommodate the headed members of the shell, and a latch member carried by one of the side members of the shell adjacent the connected marginal portion thereof and adapted to overlie the plate when in applied position.

In testimony whereof I hereunto affix my signature in the presence of two witnesses.

ALVIN Z. PIERCE.

WVitnesses:

G. H. GEE, R. F. STEWART.

Commissioner of Patents,

Washington, D. G. 

